Improvement in pruning-shears



HAMER H. iNGALsE a, GUSTAVUS A. PREsc'oT-T.

WW/migen UNITED STATES PATENT OFFICE.

HOMER H. INGALSBE, OF SOUTHHARTFORD, AND GUSTAVUS A. PRESOOTT, OF SANDYHILL, NEW YORK.

IMPROVEMENT IN PRUNlNG-SHEARS.

Specification forming part of Letters Patent No. 117 ,888, dated August8, 1871.

To all whom it may concern: Y

Be it known th at we, HoMER H. INGALsBE, of South Hartford, and GUsTAvUsA. PEEsooTT, of Sandy Hill, in the county of Washington and State of NewYork, have invented certain new and useful Improvements in Implementsfor Pruning Trees; and we do hereby declare that the following is afull, clear, and exact description thereof, reference being had to theaccompanying drawing and to the letters of reference marked thereon,which form a part of this specification.

The nature of our invention consists in the construction and arrangementof an implement for priming trees, as will be hereinafter more fully setforth.

In order to enable others skilled in the art to which our inventionappertains to make and use the same, we will now proceed to describe itsconstruction and operation, referring to the anneXed drawing, whichrepresents a side view of my pruning-tool.

A represents the cuttingjaw, pivoted to the stationary jaw B. Thisstationary jaw Bis s'ecured to the staif D, and the cutting-jaw A is, bya rod, C, connected with the operating-lever E, pivoted to the staff.The cutting-jaw A is constructed in such a manner that a line connectingthe fulcrurn a with the point b where the rod O is attached shall benearly at right angles to the cuttngedge, and the said fulcrum t isplaced upon the stationary jaw B at a convenient distance from andnearly at right angles with the edge of said jaw for the purpose ofallowing the knife to be worked by the straight rod O, which runs upparallel and close to the staff. The upper front corner of the knife Aisout away in a convenient are of a circle so as to make an eccentric cutwith the edge of the knife. The rod O is confined to the staff D throughits whole length by staples d or other suitable means so that they shallmutually sustain and support each other. The lever E is constructed, asshown, with two fulcrums, c and f, and is so arranged as to changefulcrums in the middle of the stroke.

The lever E is provided with two curved slots, e j', through which thefulcrums c j' are inserted, and it will be noticed that the lever turnsfirst upon one fulcrum to about the middle of the stroke, then changesand turns upon the other to complete the stroke.

Having thus fully described our invention, what we claim as new, anddesire to secure by Letters Patent, is-

l. The lever E, constructed as set forth, in combination with the rod O,staff D, and jaws A B, all constructed and arranged to operatesubstantially as set forth.

2. The lever E for operating the cutting-jaw, when said lever isprovided with two fulcrums and so constructed as to change fulcrums inthe middle of the stroke, substantially as herein set forth.

In testimony that we claim the foregoing as our own we affix oursignatures in the presence of two witnesses.

HOMER H. INGALSBE.

GUSTAVUS A. PRESCOTT.

Witnesses:

ROYAL INGALSBE, JEEEMEE SCRIPTURE.

